Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Regardless of your take on the iPad as a do-everything replacement device for laptops and netbooks, other e-book readers (EBRs) are gaining a substantial foothold. Devices such as the Kindle and the Nook provide access to volumes of literature and documents without having to lug a fully-functional computer around.
However, EBRs do not completely replace the need for notebooks and netbooks. Depending on your specific needs, both laptop/netbook-based EBR software and a stand-alone e-book device can be indispensable for portable access to work-related and recreational reading. A Linux app called "Calibre" bridges the gap between both reading devices.
Calibre is a free, cross-platform e-book library management application for Linux, OS X and Windows. This open source app goes far beyond letting you access your collection of e-books on a computer. In many ways, Calibre does for e-books what other Linux apps do for your digital picture libraries and music collections.